Question

A few gram seeds were placed in three pots A, B and C containing soil. These pots were watered regularly and following nutrients were added in the soil.

Pot	Source of Nutrients
Pot A	Nil
Pot B	Cow dung
Pot C	Urea

What will be the observation after 10 days?

• A. A lot of growth in pot A and no growth in pot C.
• B. Not much growth in pot B and a lot of growth in pot A.
• C. Lot of growth in pots A and B but very little growth in pot C.
• D. Very little growth in pot A but lot of growth in pots B and C.

Answer 1

Answer: (D)

Pot A: Without nutrients:

1. As no nutrients are added to the pot and the seed is watered only, seed does not germinate.
   
2. ​After 10 days, the seeds fails to germinate because of the absence of nutrients.
   

Pot B: Cow dung:

1. Cow dung added to the soil acts as a natural manure.
   
2. It is rich with nutrients that can easily enter the soil when decomposed.
   
3. Therefore, due to soil enrichment caused by the natural fertilizer the seeds are going to germinate. ​

Pot C: Urea:

1. Urea is commonly used as a chemical fertilizer and it helps with enriching the soil.
   
2. The nutrient enrichment due to urea increases the soil fertility and presence of nitrogen in the soil.
   
3. This will also lead to germination of seeds. ​